Twyer-iron.



N10. 792,179. PATENTED JUNE 13, 1905, C. 0. SWENSON.

TWYER IRON.

APPLICATION FILED DEG.22, 1903.

lll/ll f IlNiTnn STATES Patented June 13, 1905.

PATENT Trice.

TWYER-IRON.

SPECIFICATION forming part of Letters Patent No. 792,179, dated June 13, 1905. Application led December 22,1903. Serial No. 186,233.

To all whom, t may concern.-

Beit known that I, CHARLES O. SwnNsoN, of Minneapolis, county of Hennepin, and State of Minnesota, have invented a new and useful Improvement in Iwyer-Irons, of which the following is a full, clear, and exact description, reference being had to the'accompanying` drawings.

My invention relates to blacksmiths forges;

IO and it consists in an improved twyeriron therefor, my purposes being, first, the production of a twyer-iron wherein the fire-pot thereofl is adjustable upon and removable from the remaining portion; second, the pro- I 5 duction of a fire-pot for twyer-irons of an improved form.

To these ends my improved twyer-iron consists of the device shown in the accompanying drawings, in which- Figure 1 is a vertical longitudinal section; Fig. Q, a top view; and Fig. 3, a horizontal cross-section of Fig. l, taken on the line 3 3. Similar letters refer to similar parts, A being' the twyer-iron proper, and B the removable fire-pot.

The twyer-iron A consists of a vertical cylinder a and a horizontal air-blast pipe 7), comn1 unicating therewith intermediate its length.

This vertical cylinder is fashioned at its upper 'Mauth a flange c, to which the fire-pot B is adjustably affixed, as hereinafter set forth, it being vertically pierced for the purpose. It is provided near its upper end with the pan (7, preferably fashioned convex upon its under 3 5 side, and near its lower end with the damper (A, preferably fashioned with parallel sides. rIhe flange c of the vertical cylinder A is vertically pierced, being' provided with quadrantal slits or openings f, adapted to receive 40 the clamping-bolts g, which bolts secure the two parts (the twyer-iron A and the fire-pot B) together.

lThe lire -pot B is preferably fashioned round, (as viewed from the top.) This, however, is not essential, as other forms would serve the purpose. Upon one or more sides itis provided with the depressed and laterallyextending lip t, the purpose of which'will be set forth in its order. It is further provided upon its base or under side with a horizontally-extending flange 1I, which flange is adapted to overhang the flange c of the twyer-iron `A and to rest upon the supports j, laid in the forge, which supports give thereto the necessary stability. It is still further provided with the vertical bolt-holes 7;, adapted to secure the before-mentioned bolts g.

In practice I properly locate the twyeriron A in the forge, where it is secured in place by the masonry. Upon this I place the lire-pot B and secure it to the twycr-iron A by inserting the clamping-bolts g in the holes 7a therein and through the quadrantal slits f of the twyer-iron A and secure them in place by means of the clamping-nuts Z.

My purpose in having quadrantal slits in the flanged head of the twyer-iron is to provide for the adjustment of the lire-pot, that I may locate the lip /L of the lire-pot at any convenient point in the forge, the form of the slits being such that the said fire-pot may be moved around a quarter-circle without removing the clamping bolts. pressed portion and outwardly-extending lip is to provide for so placing the iron to be forged that the portion to be heated may lie within the center part of the fuel where the hot blast is strongest, and to provide a supporting means therefor.

Vhat I claim as new, and desire to secure by Letters Patent, is-

The combination with a twyer-iron fixed in a forge and having a lateral branch, anda horizontal fiange on its Lipper edge, said flange being formed with a plurality of oppositelydisposed segment-shaped slots, of two parallel supports fixed in the forge, one on each side of the iange on the upper edge of the twyeriron, and with their upper surfaces alined with the upper surfaces of said flange; a rotary concave fire-pot having a horizonal flange, said flange resting on the flange of the twyeriron and on the upper surfaces of said supports, and bolts passing through the bottom of the said pot and through the slots in the flange of the twyer-iron.

CHARLES O. SVENSON.

I/Vitnesses:

CLIFFORD SNow, F. Gr. OBRIEN.

The purpose of the de-` 

